How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?

Airlines like ANA fly from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport in about 15h 40m. The time it takes to get you to your destination can typically vary by up to . There are 6921 mi between Osaka Itami Airport and Washington, D.C. Dulles Intl Airport.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What is the cheapest time of day to fly from ITM to IAD?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport as you normally would.

Most accurate provider : When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?

Yes. In addition to deals on Osaka Itami to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Osaka Itami to Dulles Intl?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka Itami to Dulles Intl.

Can I find deals for business class flights from Osaka Itami to Dulles Intl?

Yes. Cheapflights offers flight deals from Osaka Itami to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$626+ Flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Osaka Itami to Dulles Intl

Cheapest flights from Osaka Itami to Dulles Intl
Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Tue 3/102:35 pm

ITM

IAD

2 stops33h 54m

Multiple Airlines

Tue 3/179:55 am

IAD

ITM

2 stops20h 55m

Multiple Airlines

Deal found 1/24

$1,390

Thu 10/222:40 pm

ITM

IAD

2 stops39h 36m

Multiple Airlines

Mon 10/269:00 am

IAD

ITM

2 stops21h 50m

Multiple Airlines

Deal found 1/23

$1,583

Thu 10/2212:00 pm

ITM

IAD

1 stop16h 35m

United Airlines

Mon 10/2610:05 pm

IAD

ITM

2 stops54h 05m

United Airlines

Deal found 1/25

$1,629

Wed 3/117:30 am

ITM

IAD

1 stop15h 40m

ANA

Wed 3/1812:15 pm

IAD

ITM

1 stop16h 55m

ANA

Deal found 1/25

$1,780

Tue 3/108:00 am

ITM

IAD

1 stop15h 10m

ANA

Tue 3/1712:15 pm

IAD

ITM

1 stop19h 20m

ANA

Deal found 1/24

$1,818

Wed 3/111:40 pm

ITM

IAD

2 stops20h 41m

Multiple Airlines

Wed 3/189:55 am

IAD

ITM

2 stops20h 55m

Multiple Airlines

Deal found 1/25

$1,867

Best flights from Osaka Itami to Dulles Intl
Discover carefully curated flight deals from Osaka Itami to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 26, 2026.

Tue 3/102:35 pm

ITM

IAD

2 stops33h 54m

Multiple Airlines

Tue 3/179:55 am

IAD

ITM

2 stops20h 55m

Multiple Airlines

Deal found 1/24

$1,390

Wed 3/117:30 am

ITM

IAD

1 stop15h 40m

ANA

Wed 3/1812:15 pm

IAD

ITM

1 stop16h 55m

ANA

Deal found 1/25

$1,780

Sat 5/22:35 pm

ITM

IAD

2 stops22h 34m

Japan Airlines

Fri 5/87:10 am

IAD

ITM

2 stops23h 40m

Japan Airlines

Deal found 1/26

$1,889

Thu 5/143:00 pm

ITM

IAD

2 stops19h 25m

Air Canada

Fri 5/299:55 am

IAD

ITM

2 stops20h 15m

Air Canada

Deal found 1/24

$3,479

Tue 3/108:00 am

ITM

IAD

1 stop15h 10m

ANA

Tue 3/1712:15 pm

IAD

ITM

1 stop19h 20m

ANA

Deal found 1/24

$1,818

Wed 3/111:40 pm

ITM

IAD

2 stops20h 41m

Multiple Airlines

Wed 3/189:55 am

IAD

ITM

2 stops20h 55m

Multiple Airlines

Deal found 1/25

$1,867

Sat 5/27:30 am

ITM

IAD

1 stop15h 35m

ANA

Fri 5/812:30 pm

IAD

ITM

1 stop19h 05m

ANA

Deal found 1/26

$2,116

Thu 5/1412:00 pm

ITM

IAD

2 stops22h 11m

ANA

Fri 5/298:35 am

IAD

ITM

2 stops22h 40m

ANA

Deal found 1/23

$3,337

Last-minute flights from Osaka Itami to Dulles Intl
Discover last-minute flight deals from Osaka Itami to Dulles Intl. Data last updated January 26, 2026 and is based on user searches.

Wed 1/282:00 pm

ITM

IAD

2 stops20h 26m

Multiple Airlines

Fri 1/309:45 am

IAD

ITM

2 stops20h 10m

Multiple Airlines

Deal found 1/24

$1,996

Wed 1/282:00 pm

ITM

IAD

1 stop15h 40m

ANA

Fri 1/3012:20 pm

IAD

ITM

1 stop18h 15m

ANA

Deal found 1/24

$2,785

One-way flights from Osaka Itami to Dulles Intl
Search for one-way flight options from Osaka Itami to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated January 26, 2026.

Thu 4/2312:00 pm

ITM

IAD

3 stops43h 20m

Multiple Airlines

Deal found 1/25

$626

Sun 7/58:20 pm

ITM

IAD

3 stops51h 26m

Multiple Airlines

Deal found 1/24

$787

Tue 2/1711:30 am

ITM

IAD

2 stops23h 24m

Multiple Airlines

Deal found 1/26

$865

Fri 6/262:35 pm

ITM

IAD

2 stops22h 24m

Multiple Airlines

Deal found 1/26

$916

Mon 2/1611:30 am

ITM

IAD

2 stops23h 24m

Multiple Airlines

Deal found 1/24

$927

Sun 6/72:35 pm

ITM

IAD

2 stops22h 24m

Multiple Airlines

Deal found 1/26

$992

Sat 4/118:20 pm

ITM

IAD

3 stops49h 20m

Multiple Airlines

Deal found 1/24

$1,018

Sun 2/1511:30 am

ITM

IAD

2 stops22h 59m

Multiple Airlines

Deal found 1/24

$1,270

Fri 4/177:25 am

ITM

IAD

2 stops26h 12m

Multiple Airlines

Deal found 1/25

$1,305

Sun 2/152:00 pm

ITM

IAD

2 stops20h 29m

Air Canada

Deal found 1/24

$1,431

Find flight deals from Osaka Itami to Dulles Intl

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$1,390 (Flightnetwork)
One-way from	$626 (Kiwi.com)

Provider with most accurate pricing for Osaka Itami-Washington, D.C. Dulles Intl flight deals.

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Provider most trusted by Cheapflights users for Osaka Itami-Washington, D.C. Dulles Intl flights.

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From Osaka Itami to Washington, D.C. Dulles Intl

Search Deals

One-way flight from Osaka Itami to Washington, D.C. Dulles Intl

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 3/10

2:35 pm-11:29 am

2 stops33h 54m

Washington, D.C. Dulles Intl

Tue 3/17

9:55 am-7:50 pm

2 stops20h 55m

$1,390

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 3/11

7:30 am-10:10 am

1 stop15h 40m

Washington, D.C. Dulles Intl

Wed 3/18

12:15 pm-6:10 pm

1 stop16h 55m

$1,780

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 3/10

8:00 am-10:10 am

1 stop15h 10m

Washington, D.C. Dulles Intl

Tue 3/17

12:15 pm-8:35 pm

1 stop19h 20m

$1,818

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Wed 3/11

1:40 pm-9:21 pm

2 stops20h 41m

Washington, D.C. Dulles Intl

Wed 3/18

9:55 am-7:50 pm

2 stops20h 55m

$1,867

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Sat 5/2

2:35 pm-12:09 am

2 stops22h 34m

Washington, D.C. Dulles Intl

Fri 5/8

7:10 am-7:50 pm

2 stops23h 40m

$1,889

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Sat 5/2

7:30 am-10:05 am

1 stop15h 35m

Washington, D.C. Dulles Intl

Fri 5/8

12:30 pm-8:35 pm

1 stop19h 05m

$2,116

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 5/14

12:00 pm-9:11 pm

2 stops22h 11m

Washington, D.C. Dulles Intl

Fri 5/29

8:35 am-8:15 pm

2 stops22h 40m

$3,337

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 5/14

3:00 pm-9:25 pm

2 stops19h 25m

Washington, D.C. Dulles Intl

Fri 5/29

9:55 am-7:10 pm

2 stops20h 15m

$3,479

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Thu 4/23

12:00 pm-6:20 pm

3 stops43h 20m

$626

OsakaWashington, D.C.

ITM - IAD

ITMIAD

Osaka Itami

Tue 2/17

11:30 am-8:54 pm

2 stops23h 24m

$865

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 15 results

Most accurate provider: When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Osaka Itami Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Osaka Itami to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Osaka Itami with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?
Airlines like ANA fly from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport in about 15h 40m. The time it takes to get you to your destination can typically vary by up to . There are 6921 mi between Osaka Itami Airport and Washington, D.C. Dulles Intl Airport.
Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Osaka Itami to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Osaka Itami to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Osaka Itami to Dulles Intl.
Can I find deals for business class flights from Osaka Itami to Dulles Intl?
Yes. Cheapflights offers flight deals from Osaka Itami to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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$626+ Cheap flights from Osaka Itami (ITM) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Osaka Itami to Dulles Intl with Cheapflights

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2. Select your favorite providers

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Cheap flight deals from Osaka Itami to Dulles Intl

Cheapest flights from Osaka Itami to Dulles IntlExplore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

Find flight deals from Osaka Itami to Dulles Intl

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport that are best for you.

Best time to book a flight from Osaka Itami to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Osaka Itami with our price prediction graph.

Related info for your journey

Find useful and relevant information for your journey from Osaka Itami to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Osaka Itami Airport to Washington, D.C. Dulles Intl Airport?

Can I find deals for flights from Osaka Itami to Dulles Intl that include hotel bookings?

How can I find direct flights from Osaka Itami to Dulles Intl?

Can I find deals for business class flights from Osaka Itami to Dulles Intl?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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Cheapest flights from Osaka Itami to Dulles Intl
Explore the most affordable flight options available from Osaka Itami to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.